Answer:
The product of (x-3) and (x+7) is x² + 4x - 21
Step-by-step explanation:
The product of (x-3) and (x+7) is x² + 4x - 21
The product of (x - 3) and (x + 7) can be found as follows:
(x - 3)(x + 7)
open the bracket by multiplying
Therefore,
x(x) +x(7) - 3(x) - 3(7)
x² + 7x - 3x - 21
combine like terms
x² + 4x - 21
All you have to do is take 45$ and divide it by 1/3 then when you get that answer divide it by 1/4 to get your answer. So I believe your answer will be less than a dollar.
The answer will be 10 as the ratio is 4. 10 x 4 = 40
